Hand Warmer
From Amazon
Zippo Unisex's 6/12 Hour Hand Warmer | Portable, Refillable, Odorless | Works Lighter Fluid | Includes Easy Fill Technology, 2.5X More Heat Than disposables | Perfect Camping, Fishing |, Pearl 6 Hr
OnBuy
(Chrome) Zippo 6-Hour Hand Warmer | Reusable Hand Warmer